Research in Strong-Interaction Theory

强相互作用理论研究

• 批准号: 1002478
• 负责人: Richard Furnstahl
• 金额: $ 99.08万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1002478&HistoricalAwards=false
• 关键词: Research; Strong; Interaction; Theory

Renewed interest in the physics of nuclei is fueled by experiments at rare isotope beam facilities, which open the door to new regions of exotic nuclei; by astrophysical observations and simulations of neutron stars and supernovae, which require controlled extrapolations of the equation of state of nucleonic matter in density, temperature, and proton fraction; and by studies of universal physics, which unite cold atom and dilute neutron physics. The projects funded by this award address this physics by combining effective field theory, which provides a systematic expansion of nuclear forces including the important three-body forces, and renormalization group methods, which decouple troublesome high-energy contributions from the low-energy parts we want to describe. The results are controlled calculations that can better exploit the steady improvements in computing power.The training received by undergraduates, graduate students, and postdoctoral research associates in carrying out the proposed activities contributes directly to the building of a diverse scientific workforce. The mix of analytical and numerical computation employed is excellent preparation for both academic and industrial research. The emphasis on universal aspects of physical systems, fostered by effective field theory and renormalization group approaches, as well as the direct application of techniques to problems beyond the nuclear domain, leads to enhanced collaborations between disciplines. Outreach efforts will bring interactive science to a wide range of Ohio residents.

在稀有同位素束设施上进行的实验，打开了通往奇异核新区域的大门，对中子星和超新星的天体物理学观测和模拟，需要对核子物质的密度、温度和质子分数的状态方程进行受控外推，以及对宇宙物理学的研究，将冷原子和稀释中子物理学结合起来，这些都重新激发了人们对核物理学的兴趣。 该奖项资助的项目通过结合有效场论来解决这个物理问题，有效场论提供了核力的系统扩展，包括重要的三体力，以及重整化群方法，将麻烦的高能贡献与我们想要描述的低能部分解耦。 结果是控制计算，可以更好地利用计算能力的稳步提高。本科生，研究生和博士后研究人员在开展拟议活动中接受的培训直接有助于建设多元化的科学工作队伍。 所采用的分析和数值计算的混合是学术和工业研究的良好准备。 强调物理系统的普遍性，通过有效的场论和重整化群方法，以及技术的直接应用到核领域以外的问题，导致加强学科之间的合作。 外展工作将把互动科学带到广泛的俄亥俄州居民中。